test/Parser/cxx-altivec.cpp

// RUN: %clang_cc1 -triple=powerpc-apple-darwin8 -target-feature +altivec -fsyntax-only -verify -std=c++11 %s
// RUN: %clang_cc1 -triple=powerpc64-unknown-linux-gnu -target-feature +altivec -fsyntax-only -verify -std=c++11 %s
// RUN: %clang_cc1 -triple=powerpc64le-unknown-linux-gnu -target-feature +altivec -fsyntax-only -verify -std=c++11 %s
#include <altivec.h>

__vector char vv_c;
__vector signed char vv_sc;
__vector unsigned char vv_uc;
__vector short vv_s;
__vector signed  short vv_ss;
__vector unsigned  short vv_us;
__vector short int vv_si;
__vector signed short int vv_ssi;
__vector unsigned short int vv_usi;
__vector int vv_i;
__vector signed int vv_sint;
__vector unsigned int vv_ui;
__vector float vv_f;
__vector bool char vv_bc;
__vector bool short vv_bs;
__vector bool int vv_bi;
__vector __bool char vv___bc;
__vector __bool short vv___bs;
__vector __bool int vv___bi;
__vector __pixel vv_p;
__vector pixel vv__p;
__vector int vf__r();
void vf__a(__vector int a);
void vf__a2(int b, __vector int a);

vector char v_c;
vector signed char v_sc;
vector unsigned char v_uc;
vector short v_s;
vector signed  short v_ss;
vector unsigned  short v_us;
vector short int v_si;
vector signed short int v_ssi;
vector unsigned short int v_usi;
vector int v_i;
vector signed int v_sint;
vector unsigned int v_ui;
vector float v_f;
vector bool char v_bc;
vector bool short v_bs;
vector bool int v_bi;
vector __bool char v___bc;
vector __bool short v___bs;
vector __bool int v___bi;
vector __pixel v_p;
vector pixel v__p;
vector int f__r();
void f_a(vector int a);
void f_a2(int b, vector int a);

vector int v = (vector int)(-1);

// These should have warnings.
__vector long vv_l;                 // expected-warning {{Use of 'long' with '__vector' is deprecated}}
__vector signed long vv_sl;         // expected-warning {{Use of 'long' with '__vector' is deprecated}}
__vector unsigned long vv_ul;       // expected-warning {{Use of 'long' with '__vector' is deprecated}}
__vector long int vv_li;            // expected-warning {{Use of 'long' with '__vector' is deprecated}}
__vector signed long int vv_sli;    // expected-warning {{Use of 'long' with '__vector' is deprecated}}
__vector unsigned long int vv_uli;  // expected-warning {{Use of 'long' with '__vector' is deprecated}}
vector long v_l;                    // expected-warning {{Use of 'long' with '__vector' is deprecated}}
vector signed long v_sl;            // expected-warning {{Use of 'long' with '__vector' is deprecated}}
vector unsigned long v_ul;          // expected-warning {{Use of 'long' with '__vector' is deprecated}}
vector long int v_li;               // expected-warning {{Use of 'long' with '__vector' is deprecated}}
vector signed long int v_sli;       // expected-warning {{Use of 'long' with '__vector' is deprecated}}
vector unsigned long int v_uli;     // expected-warning {{Use of 'long' with '__vector' is deprecated}}
__vector long double  vv_ld;        // expected-error {{cannot use 'long double' with '__vector'}}
vector long double  v_ld;           // expected-error {{cannot use 'long double' with '__vector'}}

// These should have errors.
__vector double vv_d1;               // expected-error {{use of 'double' with '__vector' requires VSX support to be enabled (available on POWER7 or later)}}
vector double v_d2;                  // expected-error {{use of 'double' with '__vector' requires VSX support to be enabled (available on POWER7 or later)}}
__vector bool long long v_bll1;      // expected-error {{use of 'long long' with '__vector bool' requires VSX support (available on POWER7 or later) or extended Altivec support (available on POWER8 or later) to be enabled}}
__vector __bool long long v_bll2;    // expected-error {{use of 'long long' with '__vector bool' requires VSX support (available on POWER7 or later) or extended Altivec support (available on POWER8 or later) to be enabled}}
vector bool long long v_bll3;        // expected-error {{use of 'long long' with '__vector bool' requires VSX support (available on POWER7 or later) or extended Altivec support (available on POWER8 or later) to be enabled}}
vector __bool long long v_bll4;      // expected-error {{use of 'long long' with '__vector bool' requires VSX support (available on POWER7 or later) or extended Altivec support (available on POWER8 or later) to be enabled}}
__vector long double  vv_ld3;        // expected-error {{cannot use 'long double' with '__vector'}}
vector long double  v_ld4;           // expected-error {{cannot use 'long double' with '__vector'}}
vector bool v_b;                     // expected-error {{C++ requires a type specifier for all declarations}}
vector bool float v_bf;              // expected-error {{cannot use 'float' with '__vector bool'}}
vector bool double v_bd;             // expected-error {{cannot use 'double' with '__vector bool'}}
vector bool pixel v_bp;              // expected-error {{cannot use '__pixel' with '__vector bool'}}
vector bool signed char v_bsc;       // expected-error {{cannot use 'signed' with '__vector bool'}}
vector bool unsigned int v_bsc2;     // expected-error {{cannot use 'unsigned' with '__vector bool'}}
vector bool long v_bl;               // expected-error {{cannot use 'long' with '__vector bool'}}
vector __bool float v___bf;          // expected-error {{cannot use 'float' with '__vector bool'}}
vector __bool double v___bd;         // expected-error {{cannot use 'double' with '__vector bool'}}
vector __bool pixel v___bp;          // expected-error {{cannot use '__pixel' with '__vector bool'}}
vector __bool signed char v___bsc;   // expected-error {{cannot use 'signed' with '__vector bool'}}
vector __bool unsigned int v___bsc2; // expected-error {{cannot use 'unsigned' with '__vector bool'}}
vector __bool long v___bl;           // expected-error {{cannot use 'long' with '__vector bool'}}

// vector long is deprecated, but vector long long is not.
vector long long v_ll;
vector signed long long v_sll;
vector unsigned long long v_ull;

void f() {
  __vector unsigned int v = {0,0,0,0};
  __vector int v__cast = (__vector int)v;
  __vector int v_cast = (vector int)v;
  __vector char vb_cast = (vector char)v;

  // Check some casting between gcc and altivec vectors.
  #define gccvector __attribute__((vector_size(16)))
  gccvector unsigned int gccv = {0,0,0,0};
  gccvector unsigned int gccv1 = gccv;
  gccvector int gccv2 = (gccvector int)gccv;
  gccvector unsigned int gccv3 = v;
  __vector unsigned int av = gccv;
  __vector int avi = (__vector int)gccv;
  gccvector unsigned int gv = v;
  gccvector int gvi = (gccvector int)v;
  __attribute__((vector_size(8))) unsigned int gv8;
  gv8 = gccv;     // expected-error {{assigning to '__attribute__((__vector_size__(2 * sizeof(unsigned int)))) unsigned int' (vector of 2 'unsigned int' values) from incompatible type '__attribute__((__vector_size__(4 * sizeof(unsigned int)))) unsigned int' (vector of 4 'unsigned int' values)}}
  av = gv8;       // expected-error {{assigning to '__vector unsigned int' (vector of 4 'unsigned int' values) from incompatible type '__attribute__((__vector_size__(2 * sizeof(unsigned int)))) unsigned int' (vector of 2 'unsigned int' values)}}

  v = gccv;
  __vector unsigned int tv = gccv;
  gccv = v;
  gccvector unsigned int tgv = v;
}

// Now for the C++ version:

class vc__v {
  __vector int v;
  __vector int f__r();
  void f__a(__vector int a);
  void f__a2(int b, __vector int a);
};

class c_v {
  vector int v;
  vector int f__r();
  void f__a(vector int a);
  void f__a2(int b, vector int a);
};


// bug 6895 - Vectorl literal casting confusion.
vector char v1 = (vector char)((vector int)(1, 2, 3, 4));
vector char v2 = (vector char)((vector float)(1.0f, 2.0f, 3.0f, 4.0f));
vector char v3 = (vector char)((vector int)('a', 'b', 'c', 'd'));
vector int v4 = (vector int)(1, 2, 3, 4);
vector float v5 = (vector float)(1.0f, 2.0f, 3.0f, 4.0f);
vector char v6 = (vector char)((vector int)(1+2, -2, (int)(2.0 * 3), -(5-3)));

// bug 7553 - Problem with '==' and vectors
void func() {
  bool res_b;
  res_b = (vv_sc == vv_sc);
  res_b = (vv_uc != vv_uc);
  res_b = (vv_s > vv_s);
  res_b = (vv_us >= vv_us);
  res_b = (vv_i < vv_i);
  res_b = (vv_ui <= vv_ui);
  res_b = (vv_f <= vv_f);
}

// vecreturn attribute test
struct Vector
{
	__vector float xyzw;
} __attribute__((vecreturn));

Vector Add(Vector lhs, Vector rhs)
{
	Vector result;
	result.xyzw = vec_add(lhs.xyzw, rhs.xyzw);
	return result; // This will (eventually) be returned in a register
}

// vecreturn attribute test - should error because of virtual function.
class VectorClassNonPod
{
	__vector float xyzw;
public:
  VectorClassNonPod() {}
  virtual ~VectorClassNonPod() {}
} __attribute__((vecreturn));     // expected-error {{the vecreturn attribute can only be used on a POD (plain old data) class or structure (i.e. no virtual functions)}}

// vecreturn attribute test - should error because of virtual function.
class VectorClassMultipleMembers
{
public:
	__vector float xyzw;
	__vector float abcd;
} __attribute__((vecreturn));     // expected-error {{the vecreturn attribute can only be used on a class or structure with one member, which must be a vector}}

template<typename... Args> void PR16874() {
	(void) (Args::foo()...); // expected-error {{expression contains unexpanded parameter pack 'Args'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
}